Alphixir Weekly Review · Sep 14–17, 2026

WhatA shortened three-day week (Sep 14–17) stayed inside a Neutral regime the entire way, but the tape drifted from a mildly constructive read of +7.0 on Sep 15 down to -3.4 by Sep 17 — softer, but never breaking out of the Neutral band. SPY closed the abbreviated stretch up +0.23%, a low-conviction grind rather than a directional trend. Beneath the flat index, dispersion was the real story: energy names ran hard while parts of software, defense, and healthcare bled. Refiners and integrated oil led the leaderboard, with PSX the single top contributor across the book. On the other side, oilfield services (SLB) and select oil E&P (COP) detracted, showing energy was not one uniform trade. Aggregate hit-rates sat in the mid-to-high 30s to mid-40s, consistent with a chop that punished breadth. Drawdowns were shallow across every strategy, the largest being Maverick's -1.64%.

WhyThe catalyst mix was more about rotation than macro shock — the regime score compressed but never left Neutral, so there was no single event forcing the tape. Energy strength split cleanly along the value chain: refining and integrated oil (PSX, MPC, CVX, XOM) outperformed while services and upstream E&P (SLB, COP) lagged, a signal that crack-spread and product-margin dynamics were rewarded over pure crude exposure. That intra-sector fork is exactly why COP appeared on multiple worst lists even as PSX topped the best lists. Software (CRM, ADBE) and defense (NOC, RTX) softened as risk appetite thinned into the drift lower on Sep 17. A pocket of mega-cap communication and consumer tech (META, GOOGL, AAPL) held firm, cushioning the sector-focused book. With no dominant macro driver, positioning and factor tilt — not a thesis on rates or growth — decided who won.

So WhatMeridian's decision to hold concentrated integrated-oil and refiner weight (PSX, CVX, XOM all mid-8% positions) carried the week to +0.45% and +0.23% alpha, even with a 37% hit-rate — a reminder that a few sized winners beat broad breadth in chop. Maverick leaned into the same energy trade but paired it with high-conviction software and defense that faded, and the aggressive sizing turned a mixed slate into -0.91% and -1.14% alpha, the week's worst. Sentinel's low-single-digit weights meant its best names (PSX +7.67%, MPC +7.53% on tiny slices) couldn't move the needle much, landing near flat at +0.11% with the shallowest drawdown, which is the intended defensive behavior. Regent's mega-cap tech winners offset its energy and healthcare detractors but still finished slightly negative at -0.17%. The clearest takeaway: our energy exposure helped everywhere it was in refining and integrated oil, and hurt everywhere it was concentrated in E&P/services (COP, SLB). We're noting the value-chain split as a real, repeatable dispersion rather than treating "energy" as one bet.